Water-bag.



No. 679,524. Patented July so, I90l.

- 8. J. BAILEY.

WATER BAG {Applicnflon filed Jan. 3, 1901.) (No Model) nu: uonms PE ERsco. PHDYO-LIYHKL. WASHINGTON u. c

UnTTnn STATES PATENT OFFICE.

CHARLES J. BAILEY, OF NEWTON, MASSACHUSETTS.

WATER-BAG.

SPECIFICATION forming part of Letters Patent N0. 679,524, dated July 30,1901.

Application filed January 3, 1901. Serial No. 41,956. (No model.)

To all whom zit may concern.-

Be it known that 1, CHARLES J. BAILEY, a citizen of the United States,residing at Newton, in the county of Middlesex and State ofMassachusetts, have invented an Improvement in \Vaterl5ags, of which thefollowing description, in connection with the accompanying drawings, isa specification, like letters on the drawings representing like parts.

W'ater-bags as now commonly produced are made from two layers ofindia-rubber cut to the shape desired for the exterior lines of theWater-bag, said layers being united about their edges excepting at thepoint where the usual flaring-mouthed inlet-flap and the closing-valveis to appear. Such bags when filled bulge outwardly most at the centerline of the bag.

Water-bags are used to apply local heat to a particular part of thebody, and sometimes the particular part requiring the most heat cannothear the pressure of the weight of the bag and its contained water, andthis fact inspired the invention to be herein describedviz., a water-baghaving a central air-space covered by a diaphragm to overlie any part ofthe body where it is desired to apply heat and avoid undue pressure.

Figure 1 in side elevation represents a water-bag embodying my inventionin one of the best forms now known to me. Fig. 2 is a section in theline a Fig. 3 is an enlarged sectional View of one portion of the bag,and Fig. 4: shows one of the forms in which the bag may be maintainedfor use.

In the production of my novel bag I prefer to take two pieces ofindia-rubber a b, of the shape externally which it is desired that thebody of the water-bag shall present, and I may then cut out, preferablycentrally, and remove from said pieces a portion Where the air-space isto be formed. As herein shown, the removal of each piece a Z) left tworingshaped pieces. After this the outer edges of said two ring-shapedpieces are put together or butted edge to edge and covered by a strip 0,of india-rnbber, and a piece of india-rub her to constitute the usualflaring-mouth inlet (2 is laid in place, and yet another piece or tab e,of india-rubber, to contain a metallic socket or eyelet f, is put inplace, so that when subsequently heated in usual manner said parts mayall be vulcanized together to constitute the outer edge of the bag. Toconstitute the air-space g at each side of the bag, I prefer to take apiece of indie-rubber h, it constituting a diaphragm of singlethickness, and by an additional piece or pieces h Iprovide for forkingthe edge of the piece It, so that it may overlap the meeting or buttedends of the inner edges of the rings, and then for greater security Iprefer to add stay strips i, and said parts are united together byvulcanization in the usual way.

I prefer to use and have applied to the neck of the bag a loop-strapj,provided, as shown, with the ball part 7r of a ball-and-socket fasteningof usual construction, the socket be ing represented atfin the tab 6.

I find it of great advantage to be able to hold the bag partiallyfolded, as shown in outline in Fig. 4, so that it may be made to 00-cupy such position in a bed that the soles of the feet of a patient mayrest against the upturned half of the bag, or so that the upturned halfof the bag setting on the bed may rest against the back or other part ofthe body. To hold the bag in its folded position, as stated, I have onlyto cause the ball 7c to enter the socket f, as shown in Fig. 4:.

While I prefer for the best results to cut out centrally the pieces a band fill in the space so left with a diaphragm h of a single piece ofindia-rubber, yet my invention of forming an air-space at the side ofthe bag by so forming the bag that the water is exeluded at a certainplace Within the outer edges of the bag to leave an air-space might begained in other ways than herein shown and yet be within the scope of myinvention. I find in practice that the air-space covered at one side bythe diaphragm h and inclosed by the water-space causes the air next thebody and in the air-space to be highly heated, which is beneficial andalso soothing to the patient, and, if desired, a pad of absorbentmaterial may be laid in the air-space containing alcohol or any othermedicament, which will be kept hot for a long time.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s

1. A water-bag composed of ring-shaped pieces of india rubber havingtheir outer edges vulcanized together and their inner edges vulcanizedto the edge of a circular disk of india-rubber, said disk terminating atsaid inner edges.

2. A water-bag composed of ring-shaped pieces of india -rubber havingtheir outerv edges vulcanized together and their inner edges vulcanizedto the edge of a circular disk of india-rubber, said disk terminating atsaid inner edges, and means connected to opposite portions of the bagfor holding it in folded position.

3. A water-bag com posed of two plies ,ofwaterproof flexible materialeach having a portion removed therefrom, said plies having their innerand outer edges united by buttjoints and cemented together to constitutea water-receiving chamber, and a diaphragm of flexible materialseparatefrom the two plies andhaving its edges united to the innerbutted edges of the said plies to constitute an air-space at each sideof the diaphragm surrounded by the water-chamber.

4 A- water-bag composed of two plies of flexible material each having aportion-removed therefrom, said plies having their inner andouter edgesunited by-butt-joints and cemented together to constitute awater-receiving chamber, a strip of flexible material covering thebutted joint of the outer edges, anda diaphragm of flexible materialseparate from the two plies and having its edges united to the innerbutted edges ofthe said pliesto constitute an air-space atfeach side ofthe diaphragm surrounded by the Water-chamber.

' 5. A water-bag composed of two plies of Waterproof flexible materialeach havinga portion removed therefrom, said plies having their edgesunited by butt-joints to constitute surrounded by the water-chamber, andadditional or reinforcing pieces overlapping said inner butt-joint, thesaid parts being'vulcanized together.

6. A Water-bag composed of two plies of waterproof flexible materialeach having a portion removed therefrom, said plies having their edgesunited by butt-joints to constitute a Water-chamber, flexible strips ofmaterial covering the inner and outer butt-joints of the two plies, adiaphragm of flexible material separate from the two plies and havingits edges united thereto, and a stay-strip secured to the diaphragmaround its edges and said parts being vulcanized together.

7. A Water-bag comprising two plies of material united by butt-joints toform a Waterchamber, a diaphragm of flexible material separate from thesaid two plies and having.

its'edges united to the inner edges of said plies and-surrounded by theWater-chamber, and devices at diametrically opposite points of thewater-bag forengagement with each other-for maintaining the Water-bag infolded condition to present inclined heating -surfaces for applicationto the human body.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES J. BAILEY.

Witnesses: a

GEO, W. GREGORY, EDITH M. STODDARD.

